MOSCOW (AP) — The Bolshoi ballet’s artistic director has returned to the famed Moscow theater after months of treatment in Germany for burns he suffered to both eyes when a man threw acid in his face.

The January attack on Sergei Filin exposed a fierce power struggle within the theater. The general director and his rival, a principal dancer, were both ousted in the aftermath.

Filin appeared Tuesday for the ballet company’s traditional gathering to kick off the new season, but said he was not yet ready to resume work and would be traveling back and forth to Germany for continued treatment.

Filin wore tinted eyeglasses, not the dark shades of months past. His vision was reported to be 80 percent restored in his left eye, but to remain poor in the right.